The 2004 CR125R arrives chock-full of new technology imported directly from the race tracks of America.
Features & Benefits
New for 2004
Electronic power valve for optimum valve timing and improved power throughout the range.
TMX 38 carburetor gets new throttle position sensor (TPS) for even more linear throttle response.
Quick-adjust clutch perch.
New-design clutch lever to improve feel and action.
Aluminum Renthal Bars (971 Bend).
"Non-slip" seat cover for increased rider control.
Newly designed footpeg hinges prevent dirt accumulation for more consistent footpeg angle.
Dunlop D742 front and D756 rear tires for optimum traction and cornering.
All-new engine cases to improve mixture flow for even better bottom-end power.
All-new piston improves horsepower throughout the range.
Engine/Drivetrain
Liquid-cooled two-stroke single-cylinder engine with 54mm x 54.5mm bore and stroke and 7.48:1 compression ratio.
Nikasil®-plated cylinder reduces friction and heat to improve overall performance.
Piston ring groove is anodized for added durability.
Air-intake boot is reshaped for direct airflow and better low-speed engine performance.
Foam gasket between airbox and air boot for better sealing and airflow management.
38mm Mikuni TMX carburetor with throttle position sensor (TPS).
Carbon fiber four-petal reed valve with sub reeds is designed for better top-end and low-end power.
Exhaust port is reshaped to improve top-end and over-rev power delivery.
RC-style exhaust valve features an NSR road racing- inspired rotary flap design with electronic control that provides a smooth power transition between low- and mid-range engine speeds. Redesigned exhaust valve flap features more overlap to minimize exhaust gas leakage between flap and cylinder.
Exhaust header is designed to improve low-end and over-rev power delivery. The expansion chamber design enhances the engine's power output and delivery.
A four-pole ACG design produces a high-voltage spark throughout the rpm range with low magnetic drag, thus permitting a freer revving engine.
A 16-bit processor in the ignition CPU produces immediate data calculation and extremely accurate ignition timing for the solid-state digital ignition.
Eight clutch plates provide significant surface area to handle the engine's torque. Clutch springs provide a light feel at the lever.
Dual radiators permit forward engine placement and provide significant cooling capacity.
Steel water-pump gear and steel kick starter-shaft collar enhance reliability.
Final-drive gearing is 13T/52T to complement the engine's power characteristics.
Primary kick starting system allows starting in any gear.
Chassis/Suspension
Back again in 2004, the CR®125R's third- generation twin-spar aluminum frame features taller swingarm pivot plates and thinner frame spars to create a narrower overall frame cross- section, and is also lighter than the second-generation frame.
Semi-double-cradle design features a single, large- diameter tapered downtube. Two rugged box-section rails attach to the base of the downtube and support the engine. A forged aluminum steering head provides a compact and extremely durable mount for the frame spars and engine downtube.
Swingarm features a dual-axis, double-taper design with a large cast aluminum cross-member.
Front and rear wheels feature HRC® works-type lightweight aluminum spoke nipples.
Front wheel features large-diameter front axle and wide wheel-bearing span for additional rigidity.
Optional 20-inch front wheel improves cornering traction and rider comfort.
Rear axle diameter of 25mm and large-diameter bearings provide significant rigidity to withstand torturous track conditions.
Inverted Kayaba fork features a cartridge design and a unique rubber bladder lining inside the base of each fork leg to minimize aeration-induced damping force losses. Inner surface of fork's outer tubes is honed to retain a thin coating of lubricating oil to reduce friction with fork bushings.
Pro-Link® single-shock rear suspension system features a fully adjustable Kayaba rear shock with 12.5 inches of travel, separate low-speed (18 positions) and high-speed (two turns) compression damping adjusters and 30-position rebound damping. The adjusters are located together in a concentric fashion, with a screw inside a nut.
Compact twin-piston front brake caliper, anodized aluminum brake pistons and lightweight front brake disc reduce unsprung weight for improved turning and handling.
Lightweight HRC works-type rear brake system.
Large, 240mm front and rear brake rotors to provide optimum braking control.
Additional Features
Frame allows sidecovers to have larger air intake openings with new inner ducts added to significantly increase air flow in low-rpm range.
Seat follows the shape of the fuel tank, providing a smooth transition to increase rider mobility and comfort.
Brake pedal and shift lever are designed to fit the improved riding position.
New wide, cleated stainless steel footpegs are improved for self-cleaning, corrosion resistance, provide excellent grip and fold for extra ground clearance.
Cleated rear brake pedal, shift lever and folding shift lever tip are made of lightweight aluminum.
Adjustable front brake lever for optimum control.
New aluminum Renthal handlebar is rubber- mounted to reduce rider fatigue and improve comfort.
CR handlebar holders provide three different mounting positions: standard CR125R holder provides a 3mm rearward set and can be rotated 180 degrees to position handlebar 6mm forward. Optional holders (CR250R-type) provide neutral position to match rider preference.
Works-type handlebar grips add to rider comfort.
Front disc brake cover helps protect rotor and caliper from damage.
Removable rear subframe allows easy maintenance.
Washable, two-stage foam air filter for optimal engine protection and easy maintenance.
Repackable silencer for maximum performance and minimal noise.
Stainless steel clutch cable for long life.
Ownership includes one-year complimentary Membership in the Honda Rider's Club of America™. Benefits include discounts, travel benefits, roadside assistance and much more. For HRCA® details, call 1-800-847-HRCA.